Tutorial When is the square root positive or negative
Interactive Video
•
Mathematics
•
11th Grade - University
•
Practice Problem
•
Hard
Wayground Content
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving the equation X^2 - 4 = 0?
Divide both sides by 2
Add 4 to both sides
Subtract 4 from both sides
Multiply both sides by 2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When solving X^2 = 4, why must we consider both positive and negative solutions?
Because X can only be negative
Because the equation is linear
Because X can only be positive
Because both positive and negative numbers squared can result in 4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of squaring -2?
4
-4
2
0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the square root of 4, considering only the positive solution?
2
-2
4
0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of the problem, why do we only consider the positive square root of 4?
Because the square root of a number is always positive
Because the context only requires the positive solution
Because negative numbers are not real
Because the problem specifies only positive numbers
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